SEEMEE 20 bike tail light
Seemee 20
Seemee 20
Seemee 20
Seemee 20
Seemee 20 bike taillight
bicycle tail light
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SEEMEE 20 bike tail light

Magicshine® Seemee 20 Bike Tail Light

4.9285714285714 out of 5 based on 14 customer ratings
(14 customer reviews)


Magicshine bike taillight, Seemee 20 and Seemee 60, a super small, sleek and lightweight design bike rear light / blinker light for road and urban cyclists.

  • 20 lumens max, COB LED, 180 degrees visibility
  • 1 constant and 2 flash modes, 3 brightness modes
  • 1.4 hours runtime on highest brightness constant mode
  • Slanted mount base enabling horizontal beam direction
  • 17g in weight
  • USB rechargeable
  • o-ring mount


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tail light SEEMEE 20

Please take note while attempting to recharge:

bike rear light

1. Pull the silicone cover lid all the way out.

For better waterproofing, the silicone port cover is thick and anchored by very elastic bands. This lid is likely to get in the way of the USB cable.

2.  Hold the cover lid onto the mount base

Hold the lid down on the base of the mount with your thumb. If the silicone port cover is in the way, the USB plug will not be able to make full contact.

3. Plug in USB

Plug in the USB cable fully, lights will glow intermittently indicating it is being charged.



Magicshine new bike tail light, Seemee 20 and Seemee  60,  super small, sleek and lightweight design bike rear light/ blinker light for road and urban cyclists.

High powered COB red LED light source producing a max output of 20 lumens, capable of 180 degrees of visibility. 3 brightness modes with a constant and 2 flash modes gives out just enough visibility on the road or among busy city street for other cyclists, pedestrians and motorists without being blindingly bright. Micro USB plug under its waterproof silicone port cover allows the bike tail light to be charged almost anywhere. Built in Lithium battery on this bike rear light provide runtimes of 1.5 to 21.5 hours depending on lighting mode and intensity.

The mounting base for the Seemee 20 rear bike light has a degree of slant so when installed, the lumens points straight backwards. Power button is built to the center of the unit and very accessible with winter gloves. Seemee 20 bike rear light is easily installed and removed after each ride,

Seemee 20 weighs only 17g, the utility to weight ratio is hard to beat.

Additional information

Weight 3 oz
Dimensions 2.5 × 2.5 × 2.5 in
Max power




Power modes and runtime

High: 20lm 1.4hrs
Mid: 10lm 2.7hrs
Low: 4lm 7hrs

Flash 1:
High: 20lm 2.7hrs
Mid: 10lm 5.3hrs
Low: 4lm 13.1hrs

Flash 2:
High: 20lm 4.3hrs
Mid: 10lm 8.6hrs
Low: 4lm 21.7hrs


3.7V 240mAh non-replaceable

Operation temperature

-20 to 40 C

Light spread

180 degrees



Waterproof rating


Net weight


Charging power

Max 1W (5V/1A)

Customer reviews

Rated 4.9285714285714 out of 5 stars
14 reviews
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2 stars 0 0 %
1 star 0 0 %

14 reviews for Magicshine® Seemee 20 Bike Tail Light

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    Questions and answers of the customers

    1. 0 votes

      The light will come on and off rhythmically in 1-2 second intervals indicating it is being charged. If the light does not come on at all, please check the wire connection as it might not be making full contact. 

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